Modify the thin drive wheel from Treadmill

O

oldwolf

Joined
Dec 29, 2002
Messages
617
Want the thin 1" wheel to be 2". Can't seem to remove it so maybe graft a 1" wheel to it? Anybody do this?
 
Maybe take a hacksaw and cut slits on opposite sides of the wheel to cut it off?


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irona said:
Maybe take a hacksaw and cut slits on opposite sides of the wheel to cut it off?


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Motor kind of in the way for that. Sawing 1" thick by 8" no thanks. Was hoping for someone who has done a modification.
 
Take a closer look at the wheel and how it is attached. If they put it on somehow ... it can come off.

IIRC, most are just presed on a splined shaft with a bolt in the center and a retaining washer.
 
Shall we just keep guessing what you have ?

Bizarre-Shoe-01.jpg



pichers tell a story
 
AVigil said:
This is the most common way they are found
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It looks like it is just pressed on a small 1/2" shaft. I soaked it in wd-40 for a couple days and then whapped it a few timesand nothing. OK I'll try a pic.
 
I'll bet that screws off in left hand threads.

If you can get a grip on the shaft behind it with a wrench or channel-lock pliers (or grab the other end of the shaft if that is what picture #1 is), try screwing it off clockwises.
 
Stacy E. Apelt - Bladesmith said:
I'll bet that screws off in left hand threads.

If you can get a grip on the shaft behind it with a wrench or channel-lock pliers (or grab the other end of the shaft if that is what picture #1 is), try screwing it off clockwises.
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OK, naps over. Put my vise grips on the other end and Wow ,it practically fell of in my hand. Thank you so much you guys. Terrific group here. Not done yet. The shaft looks to be 5/8" and smaller threads on the end. Would appreciate knowing what you guys that have played with these used for a replacement wheel??? I don't have a mill so am limited.
 
The couple I dismantled were threaded too. Both motors had the protruding shaft out the rear.
I grabbed that with a lathe chuck, the flywheels unscrewed fairly easy.

Good luck for yours.
 
oldwolf said:
OK, naps over. Put my vise grips on the other end and Wow ,it practically fell of in my hand. Thank you so much you guys. Terrific group here. Not done yet. The shaft looks to be 5/8" and smaller threads on the end. Would appreciate knowing what you guys that have played with these used for a replacement wheel??? I don't have a mill so am limited.
Click to expand...

What I did is ponder this very question, shrug my shoulders, throw it in the trash, and buy a new motor.
 
Be varry careful with the motor becaus thy have a permanint magnet inside and its open to the air. If you use it to grind steel it will suck the grit into the motor and seeze it up. At least the ones I have messed with or seen where open to the air for cooling.
 
P.Brewster said:
What I did is ponder this very question, shrug my shoulders, throw it in the trash, and buy a new motor.
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LOL. Yeah that's the easy way. I just want a small variable speed unit. Got all the electronics for it.
Have a good Holiday.
Ken
 
I made a new pulley for my treadmill motor. I cut a keyway into the round portion behind the threads.

Don't ask me how I did that. I don't remember. I assume I put the shaft on the milling machine. Anyway, I secured it with a set screw.

You can always try to scrounge up a pulley with a smaller hole than the shaft you have. Then you can drill it out and tap it. You'll need to know the size of the threads on your existing pulley, and of course, you'll need to buy the correct drill bit and left-hand tap. Just make sure you never run the motor in reverse!
 
The Mighty Ginsu said:
I made a new pulley for my treadmill motor. I cut a keyway into the round portion behind the threads.

Don't ask me how I did that. I don't remember. I assume I put the shaft on the milling machine. Anyway, I secured it with a set screw.

You can always try to scrounge up a pulley with a smaller hole than the shaft you have. Then you can drill it out and tap it. You'll need to know the size of the threads on your existing pulley, and of course, you'll need to buy the correct drill bit and left-hand tap. Just make sure you never run the motor in reverse!
Click to expand...
I think I have a wheel that might work. Thanks for the tip.
Ken
 
IIRC, some of the guys used the old flywheel and projecting grooved drive stub to press fit a drilled out pulley onto. Three bolts were added to keep it tight to the steel flywheel.
One British chap use a wooden wheel he turned on his wood lathe and the old steel wheel and stub was epoxied into the recessed side. He trued this assembly up while running on the motor, and made it a 2" wide drive wheel.
 
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